James "Jim" Arthur Lovell, Jr., (born March 25, 1928) was a former NASA astronaut and a retired captain in the United States Navy, most famous as the commander of the Apollo 13 mission, which suffered a critical failure en route to the Moon but was brought back safely to Earth by the efforts of the crew and mission control. Lovell was also the command module pilot of Apollo 8, the first Apollo mission to enter lunar orbit. Lovell is a recipient of the Congressional Space Medal of Honor and the Presidential Medal of Freedom. He is one of only 24 people to have flown to the Moon, the first of only three people to fly to the Moon twice, and the only one to have flown there twice without making a landing. Lovell was also the first person to fly in space four times. Description above from the Wikipedia article Jim Lovell, licensed under CC-BY-SA, full list of contributors on Wikipedia.